Impact wrench



FIG. 1 is a front perspective view of an impact wrench embodying my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIGS. 3-7 are for the purpose of illustrating portions of the impact wrench and form no part of the claimed design. 

CLAIM The ornamental design for an impact wrench, as shown and described. 